Unfortunately we aren't an official YouTube forum, we are just a couple of YouTubers that wanted to build a community where other YouTubers could share their videos and find others to watch and collaborate with. Because of this we, unfortunately, have no influence in any of YouTube's decisions. Your best bet about finding out whether you can revert back to the old layout is through contacting YouTube's Support Team by visiting the following link - https://support.google.com/youtube#topic=4355266